Imaging Biomarkers of Progression of Mobility Impairment in Parkinson Disease
1 other identifier
observational
67
1 country
1
Brief Summary
The purpose of this research is to evaluate changes in cholinergic brain activity over time in subjects with Parkinson disease.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for all trials
Started May 2010
Longer than P75 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
April 14, 2010
CompletedFirst Posted
Study publicly available on registry
April 20, 2010
CompletedStudy Start
First participant enrolled
May 1, 2010
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 1, 2014
CompletedStudy Completion
Last participant's last visit for all outcomes
March 1, 2015
CompletedResults Posted
Study results publicly available
February 1, 2016
CompletedFebruary 1, 2016
December 1, 2015
4.3 years
April 14, 2010
November 6, 2015
December 23, 2015
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
AChE PET Neuroimaging
AChE PMP PET hydrolysis rate outcome measure. AChE \[11C\]PMP hydrolysis rates (k3) were estimated using the striatal volume of interest (defined by manual tracing on the MRI scan of the putamen and caudate nucleus) as the tissue reference for the integral of the precursor delivery. This measure is a proxy measure for the count of cholinergic nerve terminals in the basal forebrain innervation the cortical mantle.
4 yr
Study Arms (1)
Group 1 Parkinson disease subjects
Subjects with Parkinson disease who previously participate in a motor and brain PET (brain positron emission tomography) imaging study who were invited for a longitudinal observational study.
Eligibility Criteria
Recruited in previous study
You may qualify if:
- Patients who meet the UK Parkinson's Disease Society Brain Bank Research Center clinical diagnostic criteria for PD.
- Hoehn and Yahr stages 1-2.5 at initial recruitment in baseline study.
- Absence of dementia confirmed by neuropsychological testing at initial recruitment in baseline study.
You may not qualify if:
- contra-indication for magnetic resonance study
- Pregnancy or breastfeeding
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- VA Office of Research and Developmentlead
- University of Michigancollaborator
Study Sites (1)
VA Ann Arbor Healthcare System, Ann Arbor, MI
Ann Arbor, Michigan, 48105, United States
Related Publications (3)
Bohnen NI, Frey KA, Studenski S, Kotagal V, Koeppe RA, Scott PJ, Albin RL, Muller ML. Gait speed in Parkinson disease correlates with cholinergic degeneration. Neurology. 2013 Oct 29;81(18):1611-6. doi: 10.1212/WNL.0b013e3182a9f558. Epub 2013 Sep 27.
PMID: 24078735RESULTMuller ML, Albin RL, Kotagal V, Koeppe RA, Scott PJ, Frey KA, Bohnen NI. Thalamic cholinergic innervation and postural sensory integration function in Parkinson's disease. Brain. 2013 Nov;136(Pt 11):3282-9. doi: 10.1093/brain/awt247. Epub 2013 Sep 20.
PMID: 24056537RESULTKotagal V, Albin RL, Muller ML, Koeppe RA, Frey KA, Bohnen NI. Diabetes is associated with postural instability and gait difficulty in Parkinson disease. Parkinsonism Relat Disord. 2013 May;19(5):522-6. doi: 10.1016/j.parkreldis.2013.01.016. Epub 2013 Feb 23.
PMID: 23462483RESULT
Biospecimen
Saliva
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Limitations and Caveats
Observational study.
Results Point of Contact
- Title
- Nicolaas Bohnen
- Organization
- VAAAHS
Study Officials
- PRINCIPAL INVESTIGATOR
Nicolaas I Bohnen, MD PhD
VA Ann Arbor Healthcare System, Ann Arbor, MI
Publication Agreements
- PI is Sponsor Employee
- No
- Restrictive Agreement
- No
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- FED
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
April 14, 2010
First Posted
April 20, 2010
Study Start
May 1, 2010
Primary Completion
September 1, 2014
Study Completion
March 1, 2015
Last Updated
February 1, 2016
Results First Posted
February 1, 2016
Record last verified: 2015-12